When your mum is Posh Spice and your dad is David Beckham, you're practically royalty. So it should come as no surprise that Harper Beckham celebrated her sixth birthday with a proper tea party at Buckingham Palace today. (Yes, Her Majesty Queen Elizabeth II's humble abode.) 

Daddy Becks posted several photos of the darling celebration on Instagram. While Harper looks as excited as a little girl who, well, is celebrating her sixth birthday party at Buckingham palace, we couldn't help but notice that Beckham appears to be equally even more giddy than the birthday girl herself. Is there anything sexier than David Beckham joyfully doting on his children? We think not. 

Several of Harper's school friends and Grandma Beckham tagged along. And the icing on the sixth birthday party cake? Harper and company met a real live princess

Have a look at the must-see adorable photos here.

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The cutest Daddy-Daughter Duo in the World Embracing in Front of Buckingham Palace

Those smiles, though!

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Harper and Her Squad Casually Chilling with Princess Eugenie of York

Royals of a feather flock together. (Why, yes, that is Harper Beckham decked out in the Cinderella costume.)

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Dreaming of a ‘Beckingham Palace’ to Call Her Own

We're not sure how Dad and Grandma will ever top this epic birthday soirée, but we're thinking something along the lines of a trip to Harrods with Princess Charlotte and Prince George. Dream big, Harper. Dream big.

RELATED: 10 of the Cutest Celebrity Daddy-Daughter Duos

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